138840208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{667501}}^1$

素因数の和:667522

約数の個数: 20

約数和(自身を含む): 289695868

約数和(自身を除く): 150855660

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 667501, 1335002, 2670004, 5340008, 8677513, 10680016, 17355026, 34710052, 69420104, 138840208]

約数ペア:

[(1, 138840208), (2, 69420104), (4, 34710052), (8, 17355026), (13, 10680016), (16, 8677513), (26, 5340008), (52, 2670004), (104, 1335002), (208, 667501)]